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Adjusting counterweight on Loricraft RCM

I recently bought a second hand Loricraft PRC3 record cleaning machine, but it seems the previous owner has not set it up correctly since sometimes a little knot of thread is built up under the nozzle while cleaning a record. The suction power however seems strong and sufficient, so I think there is too much downforce on the arm/nozzle.

Does anyone know how to adjust the counterweight? There is a tiny hole in the weight, but I don't see a screw inside. Do I need a set of precision screwdrivers or a different tool?

Also, I'd like to check if there is vaseline on the magnet. I cannot find a manual online on how to remove the arm. Any tips?

Many Thanks,

Didier.
didierw

Showing 1 response by sunnyboy1956

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sunnyboy1956
424 posts
 
In addition to the many useful suggestions above do check Yip Mint's site as he has some interesting ideas eg putting a bit of vaseline on the jar collar where the lid comes in contact is a huge plus otherwise it can be difficult to prise open the jar.
Like Peter I also use the brass arm of my PRC 4 from lp edge to label then crossing the spindle/record clamp(I have an old Michel Gyro clamp)from the label to outer edge. Unlike Peter I use this routine with the enzyme cleaner as also for the distilled water rinse.
IME the thread curling occurs because the white nozzle gets wet creating extra friction for the thread. As Doug says one way of avoiding this is to keep the vacuum pump on with the nozzle in its resting place(the PRC 4 has a brass receptacle) otherwise let the arm dangle on the side.
Congratulations on the Loricraft. Its a great RCM.
Pradeep
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